- based on a single-point diamond grinding model and the elasticity theory, the stress field model in conventional ultrasonic drilling and rud are deduced. - 分别推导出普通超声鉆削和旋转超声鉆削过程中,工件在单颗磨粒作用下的应力场分布模型; 
- our conclusion is that the ultrasonic drilling or ultrasonic reaming is suitable for finish machining of holes and a promising process to be used in machining aluminum and car bon steels. - 因此超声波鉆削乃至铰削在精加工方面是一种有前途的工艺方法。 
- through analyzing the principle of vibratory cutting, the methods of choosing parameters for ultrasonic drilling of deep holes are presented and proved by experimental method. - 通过分析振动切削的机理,提出选择深孔超声振动切削参数的方法,并通过实验数据加以验证。 
- a portable and rotary type ultrasonic drilling machine is developed and designed for drilling of carbon fibre composition components. - 为碳纤维复合材料构件的鉆孔,研制出一种便携式旋转超声鉆。